2-(oxazol-5-yl)ethan-1-ol 、 tert-butyl (S)-(1-(2-(1-(cyclopropylmethyl)-7-hydroxy-1H-indol-2-yl)-1-methyl-5-oxo-1,5,7,8-tetrahydro-6H-imidazo[4,5-g]isoquinolin-6-yl)-3-fluoropropan-2-yl)carbamate 在
偶氮二甲酸二叔丁酯 、
三苯基膦 作用下,
以
甲苯 为溶剂,
以34.2 %的产率得到tert-butyl (S)-(1-(2-(1-(cyclopropylmethyl)-7-(2-(oxazol-5-yl)ethoxy)-1H-indol-2-yl)-1-methyl-5-oxo-1,5,7,8-tetrahydro-6H-imidazo[4,5-g]isoquinolin-6-yl)-3-fluoropropan-2-yl)carbamate